期刊
OPTICS LETTERS
卷 35, 期 3, 页码 336-338出版社
OPTICAL SOC AMER
DOI: 10.1364/OL.35.000336
关键词
-
类别
资金
- National Science Foundation (NSF) through CIAN ERC [EEC-0812072]
We demonstrate an innovative variable-focus flat liquid-crystal diffractive lens ( LCDL) with 95% diffraction efficiency and millisecond switching times using a +/- 2.4 V ac input. This lens is based on the electrical modulation of a 3 mu m layer of nematic liquid-crystal sandwiched between a Fresnel zone electrode structure and a reference substrate. Each zone is divided into 12 subzones to digitize the phase profiles and define the phase wrapping points. The focusing power can rapidly be switched by electrically changing the number of subzones and re-establishing the wrapping points. Potential applications include zooms with no moving parts and autofocus lenses for compact imaging devices. (C) 2010 Optical Society of America
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据